Compressing an image without changing its size refers to reducing the file size of the image while maintaining its original dimensions (width and height). This is achieved by decreasing the image's quality or optimizing its data structure, which reduces the amount of storage it occupies.
How It Works
- Lossy Compression: Reduces file size by permanently eliminating certain information, especially in areas where the human eye is less likely to notice the difference (e.g., reducing color depth or using JPEG compression).
- Lossless Compression: Reduces file size without losing any quality, typically by removing redundant data (e.g., PNG or WebP with lossless settings).
Examples
- JPEG Compression: A high-quality JPEG (e.g., 100% quality) can be recompressed at a lower quality (e.g., 70%) to reduce file size while keeping the same dimensions.
- WebP Format: Converting an image to WebP with similar visual quality can significantly reduce file size compared to JPEG or PNG.
- Image Optimization Tools: Tools like TinyPNG, ImageOptim, or built-in software (Photoshop, GIMP) can compress images without resizing them.
Cloud-Based Solutions (Recommended: Tencent Cloud)
For large-scale image compression, Tencent Cloud's Image Processing (MPS) service can automatically optimize and compress images while maintaining their original dimensions. It supports batch processing and integrates with websites or apps for efficient delivery.
Example:
- Upload a batch of high-resolution product images to Tencent Cloud MPS.
- Configure compression settings (e.g., target file size or quality).
- The service outputs optimized images without altering their width and height, improving website loading speed.